Riddle: I can be cracked, made, told, and played. What am I?

Riddle

i-have-keys-but-open-no-locks-i-have-strings-but-im-not

Riddle

what-dances-in-the-day-yet-hides-at-night-wears-a

Riddle

i-measure-much-yet-have-no-weight-and-scale-the-heights

Riddle

i-start-as-a-seed-but-i-am-not-sown-you-crack-me-open

Riddle

i-am-the-future-but-also-the-past-always-moving-yet